Loom.



J. A. GENDRON.

LOOM.

APPLICATION HLED MAY 9. 1915.

Patented Feb. 5, 1918.

A@ m E JOSEPH A. GENDRON, OF NASI-IUA, NEW HAMPSHIRE. 1/

LOOM.

Specification of Letters Patent.

Patented Feb. 5, 1918.

Application filed May 9, 1916. Serial No. 96,339.

To all whom it may concern:

Be it known that I, JOSEPH A. GENDRON, a citizen of the United States,residing at Nashua, in the county of Hillsboro and State of NewHampshire, have invented new and useful Improvements in Looms, of whichthe following is a specification.

My present invention pertains to looms; and it contemplates theprovision in a loom of improved means for preventing clogging of theopenings of the grid employed on the lay beam in combination withstop-motion mechanism, this with a view to maintaining the grid clear oflint or waste and thereby avoiding the running of a false thread orwaste into the fabric and the production of striped or otherwiseimperfect fabric when the thread breaks but the stop motion mechanism isnot actuated because the openings of the grid are occupied by lint orwaste.

The invention is designed more particularly for use in automatic weftreplenishing looms, but it may obviously be used to advantage in loomsof other descriptions for the purpose stated.

With the foregoing in mind, the invention will be fully understood fromthe following description and claims when the same are read inconnection with the drawings, accompanying and forming part of thisspecification, in which:

Figure 1 is a view, partly in side elevation and partly in section, ofso much of a loom as is necessary to illustrate the application of myinvention.

Fig. 2 is a detail section, taken in the plane indicated by the line 2-2of Fig. 1 and showing the grid, the reciprocatory grid clearer, and themeans for actuating the latter incidental to the movements of the lay.

Fig. 3 is a detail horizontal section, taken in the plane indicated bythe line 33 of Fi 1, looking downwardly.

imilar numerals of reference designate corresponding parts in all of theviews of the drawings.

The frame 1 and lay beam 2 of the loom illustrated may be and preferablyare of the ordinary construction, and the grid 3 1s fixed on said laybeam in any approved manner for use in conjunction with stopmotionmechanism. This latter, however, forms no part of my invention, and Ihave therefore deemed it unnecessary to illustrate the same.

In furtherance of my invention I provide a grid-clearer, preferably inthe form of a rake head; the said clearer being numbered 4 and providedwith tangs 5 which are disposed and movable in the openings of the grid8. Any suitable means may be employed for utilizing the movements of thelay in the actuation of the clearer 4 with out involving departure fromthe scope of my invention as claimed. I prefer, however, to provide theclearer 4 with a stem 6, and to guide the stem 6 in the lay beam, andprovide it with an anti-friction roller 7 and a coiled spring 8interposed between the lay beam and an abutment 9 on the stem 6 andhaving for its purpose to move the clearer 4 downwardly; and in order tomove the clearer 4 upwardly against the action of the spring 8 duringthe movement of the lay beam toward the portion of the loom frame backof said beam, I provide the stationary cam 10 which is in the form of aninclined rail, suitably fixed in the loom frame 1, as shown. The saidcam 10 is positioned for the support and travel of the roller 7, asappears in Figs. 1 and 2.

In the practical operation of my novel mechanism, it will be manifestthat on the movement of the lay toward the loom portion back of the lay,the clearer 4 will be raised and the tangs 5 thereof will traverse thegrid openings in an upward direction, while on the movement of the layin the opposite direction, the spring 8 moves the clearer 4 downwardlyso that the tangs 5 of the clearer move in the grid openings toward thelower ends of said openings. By virtue of this the grid openings aremaintained in an open state during the opera tion of the loom, for thepurpose hereinbefore set forth.

I have entered into a detailed description of the construction andrelative arrangement of parts embraced in the present and preferredembodiment of my invention in order to impart a full, clear and exactunderstanding of the said embodiment. I do not desire, however, to beunderstood as confining myself to the said specific construction andrelative arrangement of parts, as in the future practice of theinvention such changes or modifications may be made as fairly fallwithin the scope of my appended claims.

Having described my invention, what I claim and desire to secure byLetters-Patent, is:

1. The combination in a loom, of a fre,

a lay, a substantially-vertical grid on the lay, a clearer having tangsmovable in the openings of the grid and also having a stem guided by thelay, and means for reciprocating the clearer substantially from thebottom to the top of the grid; said means comprising a spring for movingthe clearer downwardly, and a cam carried by the frame and constructedand arranged on movement of the lay in one direction to raise theclearer against the action of said spring.

2. The combination in a loom, of a frame,

I a lay, a substantially vertical grid on the lay,

a clearer having tangs movable in the openings of the grid and alsohaving a stem gulded by the lay, and means for rec1proeat- Copies ofthis patent may be obtained for .prising' a spring, formoving ing theclearer substantially from the bottom to the top of the grid; said meanscomthe clearer downwardly, an anti-friction roller on the stem, and aninclined cam-rail fixed to the frame and opposed to said roller andadapt ed on inward movement of the lay' to raise the clearer. V V

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses JOSEPH A. GENDRON;

\Vitnesses: V y I STEPHEN L. HALLINAN,

ALFRED G. CoLLn'r'rn.

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

